MAX_SPI_FRAMESIZE 66 drivers/char/tpm/tpm_tis_spi.c transfer_len = min_t(u16, len, MAX_SPI_FRAMESIZE); MAX_SPI_FRAMESIZE 207 drivers/char/tpm/tpm_tis_spi.c phy->iobuf = devm_kmalloc(&dev->dev, MAX_SPI_FRAMESIZE, GFP_KERNEL);